用双马来酰亚胺对环氧树脂进行改性，然后用改性环氧树脂对聚氨酯泡沫塑料进行改性。
Epoxy resin was modified by bismaleimide resin in this paper, and polyurethane foam was modified by modified epoxy resin?
以某型号工作台为例，对泡沫铝，环氧树脂填充结构工作台的静、动态特性进行了有限元模拟。
The static and dynamic finite element analysis of foam aluminum/epoxy filling structure worktable was carried out based on a certain worktable.
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